ul.titlemenu_b1{
margin:0;
padding:0;
}

li.titlemenu_b1{
list-style-type:none;
text-align:center;
margin:5px 0px;
background:url(../images/titlemenu_b1.gif) left no-repeat;
width:172px;
height:30px;
}

a.titlemenu_b1:link,a.titlemenu_b1:visited,a.titlemenu_b1:active{
color: #555; 
text-decoration: none;
font:14px/25px 'Microsoft YaHei','SimSun',Arial,Sans-Serif;
margin-right:25px;
}

a.titlemenu_b1:hover{
color: #ff6600; 
text-decoration: none;
font:bold 14px/25px 'Microsoft YaHei','SimSun',Arial,Sans-Serif;
margin-right:25px;
}